I am about to embark on a new longer distance commute and want to know that if I were to purchase a dawes device and turn the boost right down will I make a significant saving in fuel?

I understand these devices are v crude so if there is a better way that does not cost the earth - ie a new ecu then fire away!

Thanks.

 

You can fit an apexi safc fuel computer that lets you program your car's fuelling exactly how you want. On light throttle you can see big benefits

 

Without wishing to contradict Paul; Subaru flat four engines return ****-poor fuel economy when theyre normally aspirated too..... So the saving will be relative.

 

i was wondering about this yesterday actually.

if hypothetically my motorway cruising speed was 80-100mph ie on boost would i be better of being able to turn off boost for the period when i don't need the turbo much.

if you are right GC8, then it seems the answer is "No"

 

Thanks for the replies, one on ebay for £195, will see if I can get hold of a used one some time soon then.

 

Dawes device £195

More like £35

 

I know that My sister has a sport and the fuel consumption isn't good.

With a fuel computer such as the apexi you can alter the fuelling though as long as you have a knocklink to keep it safe and alter the light throttle map to allow better economy while cruising. I don't have any experience of using them myself but someone I know used to use one before getting a power fc and he could get 30+ mpg on a run by doing this.

 

Re the Apexi FC for Pre Bug eye only though?